B,V,I - photometry of 20 dwarf irregular galaxies within 10 Mpc

Details B,V,I - photometry of 20 dwarf irregular galaxies within 10 Mpc B,V,I - photometry of 20 dwarf irregular galaxies within 10 Mpc

2009-06-22

arxiv.org/abs/0906.4074v1

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

3 figures, accepted to the MNRAS

Scientific paper

CCD - photometry is presented for 20 dIrr galaxies situated in the nearby complexes CenA/M83, and CVnI as well as in the general field of the Local Volume. We present integrated magnitudes of the galaxies in B,V,I - bands and also surface brightness profiles to a median isophote mu_B ~ 28 mag /sq.arcsec. The popular Sersic parameterization of surface brightness profiles generally does a poor job of simultaneously fitting the inner cores and outer exponential surface brightness fall-offs observed in many of our targets. The observed sample is a part of a general project to image about 500 nearby (D < 10 Mpc) dwarf galaxies in multiple bands.

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